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143 MN024-010
TLTN
4.7. RF Tri Band Coupler TLTN
Description:
The TLTN is a passive RF tri band coupler designed
to combine/split signals coming from different
bands.
Its main operations carried out are:
ÿ in downlink, it combines a Low-band signal,
a Middle-band signal and a High-band
signal onto a single RF path
ÿ in uplink, it fi lters a composite signal into
Low-band, a Middle-band and a Low-band
one.
TLTN Models
The TLTN tri-band combiner is available in
different versions, depending on the bands it
addresses. A list of the TLTN models currently
available is reported in table 4.7.1:
RF orts
• 1 DL common RF output port (“C”) for the
combined DL signal
• 1 DL Low-Band RF input port
• 1 DL Middle-Band RF input port
• 1 DL High-Band RF input port
• 1 UL common RF input port (“C”) for the
combined UL signal
• 1 UL Low-Band RF output port
• 1 UL Middle-BandRF output port
• 1 UL High-Band RF output port
Refer to table 4.7.1 for Low-band, Medium band, High-Band
RF DL
Common Port
RF DL port,
Middle Band
RF DL port,
High Band
RF DL port,
Low Band
Fig. 4.7.1 TLTN tri-band coupler
RF UL port,
Middle Band
RF UL port,
High Band
RF UL port,
Low Band
RF UL
Common
Port